Treat bearing and machined surfaces so that they are well preserved. Refer to drive unit and coupling
manufacturers for their long-term storage procedures.
2.3.2 Frostproofing
Table 3: Situations when the pump is or is not frostproof
Situation Condition
Operating The pump is frostproof.
Immersed in a liquid The pump is frostproof.
Lifted out of a liquid into a temperature below freezing The impeller might freeze.
2.3 Storage guidelines
20 Model NM 3196 i-FRAME Installation, Operation, and Maintenance Manual